JP2007061350A - Core yarn feeder of eyelet holing sewing machine - Google Patents

Core yarn feeder of eyelet holing sewing machine Download PDF

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JP2007061350A
JP2007061350A JP2005251205A JP2005251205A JP2007061350A JP 2007061350 A JP2007061350 A JP 2007061350A JP 2005251205 A JP2005251205 A JP 2005251205A JP 2005251205 A JP2005251205 A JP 2005251205A JP 2007061350 A JP2007061350 A JP 2007061350A
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core
core thread
core yarn
bed
thread
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JP4862322B2 (en
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Yasuhiro Shimizu
靖宏 清水
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Brother Industries Ltd
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Brother Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To stabilize the quantity of return of wadding in a wadding feeder of an eyelet holing sewing machine in rotating a looper base after cutting a bobbin thread and the wadding after termination of one cycle of sewing, and drawing and setting the wadding at a sewing starting position. <P>SOLUTION: The wadding feeder of the eyelet holing sewing machine comprises a vertical guide pipe 33 for guiding the wadding 30 fed from the upper end side of an arm part 2 to the interior of a bed part 1, a bed guide path 50 for guiding the wadding 30 guided into the interior of the bed part 1 via the inside of the vertical guide pipe 33 to the looper base 11, and a wadding lock mechanism 34 disposed in the middle of the bed guide path 50, capable of shifting the state to a locked state in which the wadding 30 is locked or to a normal state in which the lock of the wadding is released. The wadding lock mechanism 34 is driven by a solenoid 35. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、鳩目穴かがり縫いミシンの芯糸供給装置において、特に１サイクルの縫製終了後に下糸と芯糸を切断してからルーパー土台を回動させ、芯糸を引っ張って縫製開始位置にセットする際の芯糸の引き戻し量の安定化を図ったものに関する。   The present invention relates to a core thread supply device for an eyelet-sewn sewing machine, in particular, after the end of one cycle of sewing, after cutting the lower thread and the core thread, the looper base is rotated and the core thread is pulled and set to the sewing start position The present invention relates to a method for stabilizing the amount of retraction of the core yarn during the process.

従来、身頃生地等の各種の加工布に、円弧状の鳩目穴部とこれに連続する直線穴部とからなる鳩目穴を形成し、その鳩目穴に対してかがり縫いを自動的に行う鳩目穴かがりミシンが実用化されている。   Conventionally, an eyelet hole made of an arc shaped eyelet hole part and a continuous straight hole part is formed on various processed cloths such as a body cloth, and an eyelet hole which automatically performs overlocking to the eyelet hole Overlock sewing machines have been put into practical use.

一般的に、鳩目穴かがり縫いミシンには、略矩形箱状をなすベッド部と、その上部から前方に延びるアーム部とが一体的に設けられ、アーム部の先端部には、縫針が取付けられた針棒が上下動可能に設けられ、ベッド部には、針棒の直下に位置して１対のルーパーを有するルーパー機構を備えたルーパー土台（レース土台）が設けられている。   In general, an eyelet stitching sewing machine is integrally provided with a bed portion having a substantially rectangular box shape and an arm portion extending forward from the upper portion thereof, and a sewing needle is attached to a tip portion of the arm portion. The needle bar is provided so as to be movable up and down, and the bed part is provided with a looper base (race base) provided with a looper mechanism having a pair of loopers located immediately below the needle bar.

これらルーパーは、針棒の上下動に同期して作動することにより、縫針と協働して加工布に縫目を形成する。また、ベッド部には、ルーパー土台の奥方に位置する下メスとこの下メスに対して上方より接離するハンマーが設けられ、ハンマーと下メスとの協働により加工布に鳩目穴部と直線穴部とが連なる鳩目穴状の切り込みを形成できるようになっている。   These loopers operate in synchronization with the vertical movement of the needle bar, thereby forming seams on the work cloth in cooperation with the sewing needle. In addition, the bed is provided with a lower knife located in the back of the looper base and a hammer that comes in contact with and separates from the lower knife from above. An eyelet-shaped notch that is continuous with the hole can be formed.

ところで、コート等の厚手の生地にかがり縫いを行う場合に、芯糸供給源より供給された芯糸の前端部を、ルーパー土台の頂部に設けたスロートプレートの芯糸挿通穴に布送り方向に向けて挿通させてセットしておき、芯糸供給源から引出された芯糸を縫針の左右の針落ち点の間に導出させて、芯糸を縫目内に縫い込ませて縫目を補強している。   By the way, when overlocking a thick fabric such as a coat, the front end portion of the core yarn supplied from the core yarn supply source is inserted into the core thread insertion hole of the throat plate provided on the top of the looper base in the cloth feeding direction. The core thread pulled out from the core thread supply source is led out between the left and right needle drop points of the sewing needle, and the core thread is sewn into the seam to reinforce the seam. is doing.

１サイクルの縫製終了後、固定メスと可動メスによって下糸と芯糸を切断し、次にルーパー土台を回動させてスロートプレートの芯糸挿通穴から突出する芯糸の長さが短くなるように芯糸を引っ張って、芯糸を縫製開始位置にセットする。   After one cycle of sewing, the lower thread and core thread are cut with a fixed knife and movable knife, and then the looper base is rotated so that the length of the core thread protruding from the core thread insertion hole of the throat plate is shortened. Pull the core thread on to set the core thread at the sewing start position.

このとき、芯糸供給源より芯糸が引き出されないように、ルーパー土台よりも芯糸送り方向上流側で芯糸をロックしておく必要がある。このような、芯糸をロックする為の機構には、種々のものが開示されている。例えば、特許文献１に記載のボタン穴かがりミシンの芯紐調子装置においては、ボタン穴かがりミシンのアーム部の前側に１対の紐調子と紐調子ばねを備え、１対の紐調子の間に芯紐を挿通し紐調子の前側に設けた紐調子ばねの弾性力により紐調子を押圧することで、芯紐に抵抗を付与する機構が開示されている。
特公昭５７−４１２７４号公報 At this time, it is necessary to lock the core yarn upstream of the looper base in the core yarn feeding direction so that the core yarn is not drawn from the core yarn supply source. Various mechanisms for locking the core yarn have been disclosed. For example, in the core string tension device for a buttonhole sewing machine described in Patent Document 1, a pair of string tension and a string tension spring are provided on the front side of the arm part of the buttonhole sewing machine, and a pair of string tensions is provided between the pair of string tensions. A mechanism is disclosed that applies resistance to a core string by inserting the core string and pressing the string tension by the elastic force of a string tension spring provided on the front side of the string tension.
Japanese Patent Publication No.57-41274

特許文献１のボタン穴かがりミシンの芯紐調子装置では、ミシンのアーム部に芯紐調子装置が設けられているため、芯紐調子装置からスロートプレートまでの距離が長くなる。そのため、ルーパー土台を回動させて芯糸を引っ張ってスロートプレートの芯糸挿通穴から所定量（数ｍｍ）の芯糸が突出する縫製開始位置にセットする際、芯紐調子装置とルーパー土台との間を通る部分の芯糸の伸びや弛み等が発生し、スロートプレートの芯糸挿通穴から突出する芯糸の長さが長くなったり、スロートプレートの芯糸挿通穴から芯糸が外れてしまう虞がある。そのため、使用者が鋏で芯糸を切断したり芯糸を引っ張って縫製開始位置にセットし直す必要がある。   In the core string tension device of the buttonhole sewing machine of Patent Document 1, since the core string tension device is provided in the arm portion of the sewing machine, the distance from the core string tension device to the throat plate becomes long. Therefore, when the looper base is rotated to pull the core thread and set at a sewing start position where a predetermined amount (several mm) of core thread protrudes from the core thread insertion hole of the throat plate, the core string tension device and the looper base The core thread stretches or loosens in the part that passes between the core thread, the core thread protruding from the core thread insertion hole of the throat plate becomes longer, or the core thread comes off from the core thread insertion hole of the throat plate There is a risk of it. Therefore, it is necessary for the user to set the sewing start position by cutting the core thread with a scissors or pulling the core thread.

また、特許文献１のボタン穴かがりミシンの芯紐調子装置では、紐調子ばねの弾性力により芯糸を押圧して抵抗を付与するのみであり、芯糸を引っ張って縫製開始位置にセットする際に芯糸を確実にロックすることができないため、芯糸供給源から芯糸が引き出され易く、スロートプレートの芯糸挿通穴から突出する芯糸の長さが長くなり易く、使用者が鋏で芯糸を切断する必要がある。   Further, in the core string tension device for a buttonhole sewing machine disclosed in Patent Document 1, only the core thread is pressed by the elastic force of the string tension spring to provide resistance, and when the core thread is pulled and set at the sewing start position. Since the core yarn cannot be securely locked to the core yarn, the core yarn is easily pulled out from the core yarn supply source, and the length of the core yarn protruding from the core thread insertion hole of the throat plate is likely to be long. It is necessary to cut the core yarn.

本発明の目的は、鳩目穴かがり縫いミシンの芯糸供給装置において、１サイクルの縫製終了後に下糸と芯糸を切断してからルーパー土台を回動させ、芯糸を引っ張って縫製開始位置にセットする際の芯糸の引き戻し量の安定化を図ることである。   An object of the present invention is to provide a core thread supply device for an eyelet-sewn sewing machine by cutting a lower thread and a core thread after the end of one cycle of sewing and then rotating a looper base to pull the core thread to a sewing start position. This is to stabilize the amount of retraction of the core yarn when setting.

請求項１の鳩目穴かがり縫いミシンの芯糸供給装置は、ミシンのアーム上部に設けられた芯糸案内部を経由して、ルーパー土台に設けられたスロートプレートへ芯糸を供給する鳩目穴かがり縫いミシンの芯糸供給装置において、前記芯糸案内部を経由した芯糸をベッド部内まで案内する上下案内パイプと、前記上下案内パイプ内を通って前記ベッド部内まで導入された芯糸をルーパー土台まで案内するベッド内案内経路と、前記ベッド内案内経路の途中部に配設され且つ前記芯糸をロックしたロック状態とロック解除した通常状態とに切換え可能な芯糸ロック機構とを備えたことを特徴とする。   A core thread supply device for an eyelet sewing machine according to claim 1, wherein the core thread is supplied to a throat plate provided on a looper base via a core thread guide provided on an upper part of the sewing machine arm. In a core thread supply device for a sewing machine, a vertical guide pipe that guides the core thread that has passed through the core thread guide into the bed, and a core thread that has been introduced into the bed through the vertical guide pipe A guide path in the bed that guides to the center of the bed, and a core thread locking mechanism that is disposed in the middle of the guide path in the bed and that can be switched between a locked state in which the core thread is locked and a normal state in which the core thread is unlocked. It is characterized by.

アーム部の上端側から供給される芯糸は、上下案内パイプ内を通ってベッド部内に導入され、ベッド内案内経路の途中部に配設された芯糸ロック機構を通ってルーパー土台まで案内される。このとき、１サイクルの縫製終了後に下糸と芯糸を切断し芯糸ロック機構をロック状態に切換えて芯糸をロックすると、芯糸ロック機構からルーパー土台までの距離が短いので、ルーパー土台を回動させて芯糸を引っ張って縫製開始位置にセットする際に、芯糸ロック機構とルーパー土台との間の部分で芯糸が伸びたり弛んだりしないので、芯糸の引き戻し量が安定する。   The core yarn supplied from the upper end side of the arm portion is introduced into the bed portion through the upper and lower guide pipes, and is guided to the looper base through the core yarn lock mechanism disposed in the middle portion of the in-bed guide path. The At this time, if the bobbin thread and core thread are cut after the end of one cycle of sewing and the core thread lock mechanism is switched to the locked state to lock the core thread, the distance from the core thread lock mechanism to the looper base is short. When the core thread is pulled and set at the sewing start position, the core thread does not stretch or loosen at a portion between the core thread locking mechanism and the looper base, so that the amount of core thread retracting is stabilized.

請求項２の鳩目穴かがり縫いミシンの芯糸供給装置は、請求項１の発明において、前記ベッド内案内経路は、前記芯糸ロック機構よりも芯糸送り方向下流側において芯糸を案内する水平案内パイプと、前記ルーパー土台の付近で芯糸の送り方向を変換する方向変換部材とを有することを特徴とする。   According to a second aspect of the present invention, the in-bed guide path is a horizontal guide that guides the core yarn downstream of the core yarn lock mechanism in the core yarn feed direction. It has a guide pipe and a direction changing member that changes the feeding direction of the core yarn in the vicinity of the looper base.

請求項３の鳩目穴かがり縫いミシンの芯糸供給装置は、請求項１又は２の発明において、前記芯糸ロック機構は、固定部材と、電磁アクチュエータにより駆動される可動皿部材とを有することを特徴とする。   According to a third aspect of the present invention, the core thread lock mechanism includes a fixed member and a movable dish member driven by an electromagnetic actuator. Features.

請求項４の鳩目穴かがり縫いミシンの芯糸供給装置は、請求項２又は３の発明において、前記芯糸ロック機構は、前記水平案内パイプと直線状に配置されたことを特徴とする。   According to a fourth aspect of the present invention, the core thread lock device is characterized in that the core thread locking mechanism is arranged linearly with the horizontal guide pipe.

請求項１の発明によれば、芯糸をベッド部内まで案内する上下案内パイプと、ベッド部内まで導入された芯糸をルーパー土台まで案内するベッド内案内経路と、ベッド内案内経路の途中部に配設され且つ芯糸をロックしたロック状態とロック解除した通常状態とに切換え可能な芯糸ロック機構とを備えたので、芯糸ロック機構からルーパー土台までの距離が短くなり、１サイクルの縫製終了後に下糸と芯糸を切断してからルーパー土台を回動させて芯糸を引っ張って縫製開始位置にセットする際に、芯糸ロック機構とルーパー土台との間を通る部分の芯糸の伸びや弛みを防止でき、芯糸の引き戻し量が安定する。そのため、使用者が鋏で芯糸を切断したり芯糸を引っ張って縫製開始位置にセットし直す必要がない。   According to the invention of claim 1, the upper and lower guide pipes for guiding the core yarn into the bed portion, the guide route in the bed for guiding the core yarn introduced into the bed portion to the looper base, and the middle portion of the guide route in the bed It is equipped with a core thread lock mechanism that can be switched between a locked state in which the core thread is locked and a normal state in which the core is unlocked, so the distance from the core thread lock mechanism to the looper base is shortened, and one cycle of sewing is performed. After the bobbin thread and core thread are cut, the looper base is rotated and the core thread is pulled and set at the sewing start position. Elongation and slack can be prevented, and the amount of core thread withdrawn is stabilized. Therefore, it is not necessary for the user to cut the core thread with a scissors or to pull the core thread and reset it to the sewing start position.

しかも、芯糸ロック機構をロック状態と通常状態とに切換えることができ、芯糸ロック機構をロック状態に切換えた場合、芯糸ロック機構により芯糸を確実にロックするので、芯糸供給源から芯糸が引き出さることもない。一方、縫製時には芯糸ロック機構を通常状態に切換えて、芯糸を供給側から容易に引き出すことができるので、縫目の縫い縮みを防止できる。同様に、芯糸交換時に芯糸ロック機構を通常状態に切換えた場合は、芯糸をルーパー土台まで容易に案内することができる。   In addition, the core thread lock mechanism can be switched between the locked state and the normal state. When the core thread lock mechanism is switched to the locked state, the core thread is securely locked by the core thread lock mechanism. The core yarn is not pulled out. On the other hand, at the time of sewing, the core thread lock mechanism is switched to the normal state, and the core thread can be easily pulled out from the supply side, so that seam shrinkage can be prevented. Similarly, when the core thread lock mechanism is switched to the normal state when replacing the core thread, the core thread can be easily guided to the looper base.

請求項２の発明によれば、ベッド内案内経路は、芯糸ロック機構よりも芯糸送り方向下流側において芯糸を案内する水平案内パイプと、ルーパー土台の付近で芯糸の送り方向を変換する方向変換部材とを有するので、芯糸交換時には芯糸をルーパー土台まで容易に案内することができる。   According to the invention of claim 2, the in-bed guide path converts the feed direction of the core yarn in the vicinity of the horizontal guide pipe for guiding the core yarn downstream of the core yarn lock mechanism and the core yarn feed direction and the looper base. Therefore, when the core yarn is replaced, the core yarn can be easily guided to the looper base.

請求項３の発明によれば、芯糸ロック機構は、固定部材と、電磁アクチュエータにより駆動される可動皿部材とを有するので、芯糸ロック機構をロック状態に切換えたときには、芯糸を確実にロックすることができる。   According to the invention of claim 3, since the core yarn locking mechanism has the fixed member and the movable dish member driven by the electromagnetic actuator, when the core yarn locking mechanism is switched to the locked state, the core yarn is surely secured. Can be locked.

請求項４の発明によれば、芯糸ロック機構は、水平案内パイプと直線状に配置されたので、縫製中に芯糸ロック機構に接触することなく芯糸が送り出され、芯糸の損傷を防止できる。   According to the invention of claim 4, since the core thread locking mechanism is arranged linearly with the horizontal guide pipe, the core thread is fed out without contacting the core thread locking mechanism during sewing, and damage to the core thread is prevented. Can be prevented.

本発明の鳩目穴かがり縫いミシンの芯糸供給装置は、ミシンのアーム上部に設けられた芯糸案内部を経由して、ルーパー土台に設けられたスロートプレートへ芯糸を供給する鳩目穴かがり縫いミシンの芯糸供給装置において、芯糸案内部を経由した芯糸をベッド部内まで案内する上下案内パイプと、上下案内パイプ内を通ってベッド部内まで導入された芯糸をルーパー土台まで案内するベッド内案内経路と、ベッド内案内経路の途中部に配設され且つ芯糸をロックしたロック状態とロック解除した通常状態とに切換え可能な芯糸ロック機構とを備えたものである。   The core thread supply device for the eyelet stitching machine of the present invention is the eyelet stitching machine for supplying the core thread to the throat plate provided on the looper base via the core thread guide provided on the upper part of the sewing machine arm. In the core thread supply device of the sewing machine, a bed that guides the core thread that has passed through the core thread guide part into the bed part, and guides the core thread that has been introduced into the bed part through the vertical guide pipe to the looper base. An inner guide path and a core thread lock mechanism that is disposed in the middle of the bed guide path and can be switched between a locked state in which the core thread is locked and a normal state in which the core thread is unlocked.

以下、本発明の実施例について図面に基づいて説明する。
図１は電子鳩目穴かがりミシンＭの斜視図であり、電子鳩目穴かがりミシンＭから打ち抜き用ハンマーとメスと送り台等を除去した状態が示され、図２は電子鳩目穴かがりミシンＭの正面図であり、電子鳩目穴かがりミシンＭから打ち抜き用ハンマーとメスと送り台等を除去した状態が示されている。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of the electronic eyelet hole sewing machine M, showing a state in which a punching hammer, a knife, a feed base and the like are removed from the electronic eye eyehole sewing machine M, and FIG. It is a figure and the state which removed the hammer for punching, the knife, the feed stand, etc. from the electronic eyelet hole sewing machine M is shown.

図１，図２に示すように、電子鳩目穴かがりミシンＭは、略矩形箱状をなすベッド部１と、その後部の上部から前方に連続して延びるアーム部２を有し、アーム部２の前半部の左右方向幅は、その後半部の左右方向幅の略半分の寸法に構成されている。これらベッド部１とアーム部２は一体的に構成され、ミシンテーブル（図示略）上に載置されている。   As shown in FIGS. 1 and 2, the electronic eyelet sewing machine M has a bed portion 1 having a substantially rectangular box shape and an arm portion 2 continuously extending forward from the upper portion of the rear portion. The width in the left-right direction of the front half is configured to be approximately half the width in the left-right direction of the latter half. The bed portion 1 and the arm portion 2 are integrally formed and placed on a sewing machine table (not shown).

このミシンテーブルには、針棒３の上下動及び揺動やルーパー機構２４（図４、図５参照）等を同期駆動させる縫製機構の駆動源となるミシンモータ、複数種類の鳩目穴かがり縫目のうちから択一的に選択する操作パネル、足踏み式の起動・停止スイッチなどが設けられ、更に各機構の作動を制御するマイクロコンピュータからなる制御装置も設けられている。   The sewing machine table includes a sewing machine motor serving as a driving source of a sewing mechanism for synchronously driving the vertical movement and swinging of the needle bar 3 and the looper mechanism 24 (see FIGS. 4 and 5), and a plurality of types of eyelet stitches. An operation panel that can be selected from the above, a stepping start / stop switch, and the like, and a control device that includes a microcomputer that controls the operation of each mechanism are also provided.

アーム部２の先端部には、縫針４（図４参照）を備えた針棒３が上下動可能に設けられ、詳しく図示はしないが、ミシンモータの駆動により回転する主軸（図示略）の回転力がカム機構に伝達され、所定幅分だけ左右に揺動しながら上下駆動されるようになっている。この場合、主軸の１回転により、針棒３は左側揺動位置（内針位置）と右側揺動位置（外針位置）とに２回上下動するようになっている。   A needle bar 3 having a sewing needle 4 (see FIG. 4) is provided at the distal end of the arm portion 2 so as to be movable up and down, and although not shown in detail, rotation of a main shaft (not shown) that is rotated by driving a sewing machine motor. The force is transmitted to the cam mechanism and is driven up and down while swinging left and right by a predetermined width. In this case, one rotation of the main shaft causes the needle bar 3 to move up and down twice between a left swing position (inner needle position) and a right swing position (outer needle position).

図１〜図５に示すように、ベッド部１には、針棒３に対向するように左右１対のルーパー１０ａ，１０ｂを有するルーパー機構２４を備えたルーパー土台１１が設けられ、このルーパー土台１１は後述する回動機構１４により鉛直軸周りに回動可能になっている。これら１対ルーパー１０ａ，１０ｂはルーパー土台１１に設けられたリンク機構やカム機構を介して主軸の回転により、針棒１１の上下動と調時して揺動駆動されるようになっている。   As shown in FIGS. 1 to 5, the bed portion 1 is provided with a looper base 11 having a looper mechanism 24 having a pair of left and right loopers 10 a and 10 b so as to face the needle bar 3. 11 can be rotated around a vertical axis by a rotation mechanism 14 described later. The pair of loopers 10a and 10b are driven to swing in synchronism with the vertical movement of the needle bar 11 by the rotation of the main shaft through a link mechanism and a cam mechanism provided on the looper base 11.

ここで、縫針４には糸供給源から供給される上糸が挿通されるとともに、左ルーパー１０ａの先端部には下糸が挿通され、右ルーパー１０ｂは上糸ループを編み込みながら下糸を交絡させて、ループ結合部を形成する。針棒３とルーパー土台１１はベッド部１の内部に設けられたθ方向駆動モータ２３とギヤ機構からなる回動機構１４により、夫々水平面において、鉛直軸周りに一体的に回転するようになっている   Here, the upper thread supplied from the thread supply source is inserted into the sewing needle 4, and the lower thread is inserted into the tip of the left looper 10a. The right looper 10b interlaces the lower thread while weaving the upper thread loop. To form a loop coupling portion. The needle bar 3 and the looper base 11 are integrally rotated around the vertical axis in a horizontal plane by a rotation mechanism 14 including a θ-direction drive motor 23 and a gear mechanism provided in the bed portion 1. Have

ベッド部１には、ルーパー土台１１の後方側に位置して固定配置されて鳩目穴部を形成する為のメス（図示略）が取付け台（図示略）に着脱可能に取付けられ、このメスに対して上方より接離する打ち抜き用ハンマー（図示略）が揺動可能に設けられている。打ち抜き用ハンマーは、ベッド部２の内部に設けられたエアシリンダ等からなるハンマー駆動機構（図示略）により駆動され、打ち抜き用ハンマーとメスとの協働により、略円形状の鳩目部とこれに連なる直線状の足部とからなる鳩目穴部が加工布に穿孔されるようになっている。また、ベッド部１には、下糸と芯糸３０を切断する為の固定メス（図示略）と可動メス（図示略）が設けられている。   On the bed 1, a knife (not shown), which is fixedly placed on the rear side of the looper base 11 and forms a eyelet hole, is detachably attached to an attachment table (not shown). On the other hand, a punching hammer (not shown) that comes in contact with and separates from above is swingably provided. The punching hammer is driven by a hammer drive mechanism (not shown) formed of an air cylinder or the like provided inside the bed portion 2, and a substantially circular eyelet portion is formed in cooperation with the punching hammer and the knife. An eyelet hole portion composed of a continuous linear foot portion is formed in the work cloth. The bed 1 is provided with a fixed knife (not shown) and a movable knife (not shown) for cutting the lower thread and the core thread 30.

ベッド部１の上面部には、鳩目穴かがり縫いに供する加工布がセットされる送り台（図示略）が設けられている。ベッド部１の内部には、この送り台を、ステッピングからなるＸ方向駆動モータの駆動によりＸ方向（左右方向）に送り移動させるＸ方向移動機構（図示略）と、ステッピングモータからなるＹ方向駆動モータの駆動によりＹ方向（前後方向）に送り移動させるＹ方向移動機構（図示略）とが設けられている。   On the upper surface of the bed 1, a feed base (not shown) on which a work cloth used for eyelet stitching is set is provided. Inside the bed portion 1, an X-direction moving mechanism (not shown) that feeds and moves this feed base in the X direction (left-right direction) by driving an X-direction drive motor composed of stepping, and a Y-direction drive composed of a stepping motor. A Y-direction moving mechanism (not shown) is provided that feeds and moves in the Y direction (front-rear direction) by driving the motor.

次に、縫針４とルーパー機構２４を鉛直軸心回りに回動可能な回動機構１４について、図４に基づいて説明する。
鉛直向きのレース回転軸１５の上端部と下端部には、夫々プーリ１６，１７が固着され、上側プーリ１６と、針棒３を嵌合した針棒ブロック１８とに亙ってタイミングベルト１９が掛装されている。一方、下側プーリ１７と、θ方向駆動モータ２３の駆動軸に固着された駆動プーリ２０と、ルーパー土台１１の従動ギヤ２１とに亙ってタイミングベルト２２が掛装されている。そのため、θ方向駆動モータ２３の回動により、レース回転軸１５とタイミングベルト１９，２２とを介して、針棒３とルーパー土台１１とが同期して鉛直軸心回りに回動できるようになっている。 Next, the turning mechanism 14 capable of turning the sewing needle 4 and the looper mechanism 24 around the vertical axis will be described with reference to FIG.
Pulleys 16 and 17 are fixed to the upper end and the lower end of the race rotation shaft 15 in the vertical direction, respectively, and the timing belt 19 extends over the upper pulley 16 and the needle bar block 18 with the needle bar 3 fitted thereto. It is hung. On the other hand, the timing belt 22 is hung over the lower pulley 17, the drive pulley 20 fixed to the drive shaft of the θ-direction drive motor 23, and the driven gear 21 of the looper base 11. Therefore, the rotation of the θ-direction drive motor 23 allows the needle bar 3 and the looper base 11 to be rotated around the vertical axis synchronously via the race rotation shaft 15 and the timing belts 19 and 22. ing.

ルーパー土台１１の上部には、左右１対のルーパー１０ａ，１０ｂ等を有する二重環のルーパー機構２４が設けられ、ルーパー土台１１の頂部には、スロートプレート２５が高さ調整可能に取付けられている。スロートプレート２５には、針穴と、芯糸供給源から供給される芯糸３０を挿通させる為の芯糸挿通穴が形成されている。アーム部２とベッド部１の内部には、芯糸３０をルーパー土台１１まで案内するとともに、ベッド部１の内部で芯糸３０をロックする為の芯糸供給装置５１が設けられている。   A double ring looper mechanism 24 having a pair of left and right loopers 10a and 10b is provided on the top of the looper base 11, and a throat plate 25 is attached to the top of the looper base 11 so that the height can be adjusted. Yes. The throat plate 25 is formed with a needle hole and a core thread insertion hole for inserting the core thread 30 supplied from the core thread supply source. Inside the arm portion 2 and the bed portion 1, a core yarn supply device 51 for guiding the core yarn 30 to the looper base 11 and locking the core yarn 30 inside the bed portion 1 is provided.

次に、芯糸供給装置５１について、図１〜図３、図６、図７に基づいて、説明する。
アーム部２の上端部には、芯糸案内部としての芯糸案内棒３１及び芯糸案内板３２が設けられ、芯糸供給源より供給される芯糸３０は芯糸案内棒３１と芯糸案内板３２を経由して上下案内パイプ３３に案内される。アーム部２の左側部分の前面には、鉛直方向に延びる上下案内パイプ３３が設けられ、上下案内パイプ３３は、芯糸案内棒３１と芯糸案内板３２を経由して案内された芯糸３０をベッド部１の内部まで案内する。ベッド部１の内部には、上下案内パイプ３３の内部を通ってベッド部１の内部まで導入された芯糸３０をルーパー土台１１まで案内するベッド内案内経路５０と、ベッド内案内経路５０の途中部に配設された芯糸ロック機構３４等が設けられている。 Next, the core yarn supply device 51 will be described with reference to FIGS. 1 to 3, 6, and 7.
A core yarn guide rod 31 and a core yarn guide plate 32 as a core yarn guide portion are provided at the upper end portion of the arm portion 2, and the core yarn 30 supplied from the core yarn supply source is the core yarn guide rod 31 and the core yarn. It is guided to the vertical guide pipe 33 via the guide plate 32. A vertical guide pipe 33 extending in the vertical direction is provided on the front surface of the left side portion of the arm portion 2, and the vertical guide pipe 33 is guided through the core yarn guide rod 31 and the core yarn guide plate 32. Is guided to the inside of the bed part 1. In the bed portion 1, an in-bed guide path 50 that guides the core thread 30 introduced to the inside of the bed portion 1 through the inside of the upper and lower guide pipes 33 to the looper base 11, and in the middle of the in-bed guide path 50. A core thread locking mechanism 34 and the like disposed in the section are provided.

ベッド内案内経路５０は、芯糸ロック機構３４よりも芯糸送り方向下流側において芯糸３０を案内する水平案内パイプ３９と、ルーパー土台１１の付近で芯糸３０の送り方向を変換する芯糸案内部材４０（これが方向変換部材に相当する）とを有する。尚、上下案内パイプ３３とベッド内案内経路５０と芯糸ロック機構３４が芯糸供給装置５１に相当する。   The in-bed guide path 50 includes a horizontal guide pipe 39 that guides the core yarn 30 on the downstream side of the core yarn lock mechanism 34 and a core yarn that changes the feed direction of the core yarn 30 near the looper base 11. A guide member 40 (which corresponds to a direction changing member). The vertical guide pipe 33, the in-bed guide path 50, and the core yarn lock mechanism 34 correspond to the core yarn supply device 51.

図６に示すように、芯糸ロック機構３４は、上下案内パイプ３３の下端部よりも下方であって前方右側に配設され、ソレノイド３５（電磁アクチュエータ）と、可動皿部材３７と、固定部材３８とを有する。ソレノイド３５は、そのプランジャー３６が右側に位置するように配設され、ソレノイド３５が駆動されるとプランジャー３６が右方に突出するようになっている。   As shown in FIG. 6, the core thread locking mechanism 34 is disposed below the lower end portion of the vertical guide pipe 33 and on the front right side, and includes a solenoid 35 (electromagnetic actuator), a movable dish member 37, and a fixed member. 38. The solenoid 35 is disposed so that the plunger 36 is located on the right side, and when the solenoid 35 is driven, the plunger 36 protrudes to the right.

プランジャーの前端部には可動皿部材３７が固着され、可動皿部材３７の右側には、平面視にてＬ字状の固定部材３８が所定の間隔を空けて平行に設けられ、固定部材３８は可動皿部材３７とで芯糸３０をロック可能な寸法に構成されている。固定部材３８の後端部には、左方に折曲された案内部３８ａが形成され、案内部３８ａには、上下案内パイプ３３の内部を通ってベッド部１の内部まで導入された芯糸３０を可動皿部材３７と固定部材３８との間に案内する為のガイド穴３８ｂが設けられている。   A movable dish member 37 is fixed to the front end portion of the plunger, and an L-shaped fixing member 38 is provided in parallel to the right side of the movable dish member 37 with a predetermined interval in plan view. Is configured so that the core thread 30 can be locked with the movable dish member 37. A guide portion 38a bent to the left is formed at the rear end portion of the fixing member 38, and the core yarn introduced into the bed portion 1 through the inside of the upper and lower guide pipes 33 is introduced into the guide portion 38a. A guide hole 38 b for guiding 30 between the movable dish member 37 and the fixed member 38 is provided.

芯糸ロック機構３４は、ソレノイド３５の駆動によって芯糸３０をロックしたロック状態とロック解除した通常状態とに切換え可能に構成されており、ソレノイド３５は、可動皿部材３７と固定部材３８とで芯糸３０をロック可能な電圧で駆動される。ソレノイド３５が駆動されないときは、プランジャー３６が左方に位置し可動皿部材３７が固定部材３８から離間しているので、可動皿部材３７と固定部材３８との間を通る芯糸３０が、可動皿部材３７によって固定部材３８に押圧されないようになっている。このとき、芯糸ロック機構３４は、可動皿部材３７と固定部材３８との間を通る芯糸３０を解放する通常状態である。   The core yarn lock mechanism 34 is configured to be switchable between a locked state in which the core yarn 30 is locked and a normal state in which the lock is released by driving of the solenoid 35. The solenoid 35 is configured by a movable dish member 37 and a fixed member 38. The core yarn 30 is driven with a voltage capable of locking. When the solenoid 35 is not driven, since the plunger 36 is located on the left side and the movable dish member 37 is separated from the fixed member 38, the core yarn 30 passing between the movable dish member 37 and the fixed member 38 is The movable plate member 37 is not pressed against the fixed member 38. At this time, the core yarn locking mechanism 34 is in a normal state in which the core yarn 30 passing between the movable dish member 37 and the fixed member 38 is released.

一方、ソレノイド３５が駆動されたときには、プランジャー３６が右方に突出するとともに可動皿部材３７が右方に移動し、可動皿部材３７と固定部材３８との間を通る芯糸３０が可動皿部材３７によって固定部材３８に押圧されてロックされる。このとき、芯糸ロック機構３４は、可動皿部材３７と固定部材３８との間を通る芯糸３０をロックするロック状態である。   On the other hand, when the solenoid 35 is driven, the plunger 36 protrudes to the right and the movable dish member 37 moves to the right, and the core thread 30 passing between the movable dish member 37 and the fixed member 38 is moved to the movable dish. The member 37 is pressed and locked by the fixing member 38. At this time, the core yarn locking mechanism 34 is in a locked state in which the core yarn 30 passing between the movable dish member 37 and the fixed member 38 is locked.

図１〜図３、図７に示すように、芯糸ロック機構３４の前方には、前後方向に延びる水平案内パイプが芯糸ロック機構３４と直線状に配置され、水平案内パイプ３９の穴と案内部３８ａのガイド穴３８ｂが同一軸上になっている。水平案内パイプ３９の前方やや右側には、芯糸案内部材４０が前後方向に設けられている。   As shown in FIGS. 1 to 3 and 7, a horizontal guide pipe extending in the front-rear direction is arranged linearly with the core thread lock mechanism 34 in front of the core thread lock mechanism 34. The guide hole 38b of the guide part 38a is on the same axis. A core yarn guide member 40 is provided in the front-rear direction on the front and slightly right side of the horizontal guide pipe 39.

芯糸案内部材４０の右端部には、平面視にて楕円状の支持部４２を介して案内片４１が立設され、案内片４１を支持部４２に沿って前後方向にスライド移動させることで、案内片４１の前後方向の位置調整が可能となっている。従って、１サイクルの縫製終了後に下糸と芯糸を切断してからルーパー土台１１を回動させて、芯糸３０を引っ張って縫製開始位置にセットする際の芯糸３０の引き戻し量を調整することが可能である。案内片４１には、水平案内パイプ３９から導入された芯糸３０を芯糸案内部材４０の右側に設けたルーパー土台１１に案内する為のガイド穴４１ａが設けられている。   At the right end of the core yarn guide member 40, a guide piece 41 is erected via an elliptical support portion 42 in plan view, and the guide piece 41 is slid in the front-rear direction along the support portion 42. The position of the guide piece 41 in the front-rear direction can be adjusted. Therefore, after the end of one cycle of sewing, the lower thread and the core thread are cut, and then the looper base 11 is rotated to adjust the pullback amount of the core thread 30 when the core thread 30 is pulled and set at the sewing start position. It is possible. The guide piece 41 is provided with a guide hole 41 a for guiding the core yarn 30 introduced from the horizontal guide pipe 39 to the looper base 11 provided on the right side of the core yarn guide member 40.

ルーパー土台１１の上部の縦壁１３の前側には芯糸案内板４３が固定され、芯糸案内板４３の上部には水平方向に折曲された円環部４３ａが設けられ、案内片４１のガイド穴４１ａから導出された芯糸３０を下方から上方に案内している。芯糸案内板４３には更に、円環部４３ａにより案内された芯糸３０をスロートプレート２５まで案内する為のガイド穴４３ｂが設けられ、そのガイド穴４３ｂを通った芯糸３０の前端部は、スロートプレート２５の芯糸挿通穴に挿通される。   A core yarn guide plate 43 is fixed to the front side of the vertical wall 13 at the upper portion of the looper base 11, and an annular portion 43 a bent in the horizontal direction is provided on the upper portion of the core yarn guide plate 43. The core yarn 30 led out from the guide hole 41a is guided from below to above. The core yarn guide plate 43 is further provided with a guide hole 43b for guiding the core yarn 30 guided by the annular portion 43a to the throat plate 25, and the front end portion of the core yarn 30 passing through the guide hole 43b is The core thread insertion hole of the throat plate 25 is inserted.

次に、以上説明したミシンＭの作用、効果について説明する。
図８に示すように、１サイクルの縫製終了後、送り台を後方に移動させて打ち抜き用ハンマーと下メスにより加工布に鳩目穴状の切り込みを形成した後、固定メスと可動メスにより下糸と芯糸３０を切断する。次に、ソレノイド３５を駆動し芯糸ロック機構３４をロック状態に切換えて、可動皿部材３７と固定部材３８との間を通る芯糸３０を可動皿部材３７によって固定部材３８に押圧することで芯糸３０をロックする。 Next, the operation and effect of the sewing machine M described above will be described.
As shown in FIG. 8, after one cycle of sewing is completed, the feed base is moved backward to form a cut-out in the eyelet shape in the work cloth with the punching hammer and the lower knife, and then the lower thread with the fixed knife and the movable knife. And the core yarn 30 is cut. Next, the solenoid 35 is driven to switch the core thread locking mechanism 34 to the locked state, and the core thread 30 passing between the movable dish member 37 and the fixed member 38 is pressed against the fixed member 38 by the movable dish member 37. The core yarn 30 is locked.

次に、図９に示すように、ルーパー土台１１を時計回りに約１８０°回動させると、案内片４１のガイド穴から導出された芯糸３０がルーパー土台１１の縦壁１３の縁部に引っ掛けられて、芯糸３０の前端部が後方に引っ張られて、芯糸３０が縫製開始位置にセットされる。   Next, as shown in FIG. 9, when the looper base 11 is rotated about 180 ° clockwise, the core yarn 30 led out from the guide hole of the guide piece 41 is placed on the edge of the vertical wall 13 of the looper base 11. The front end portion of the core thread 30 is pulled rearward, and the core thread 30 is set at the sewing start position.

このように、芯糸３０をベッド部１の内部まで案内する上下案内パイプ３３と、ベッド部１の内部まで導入された芯糸３０をルーパー土台１１まで案内するベッド内案内経路５０と、ベッド内案内経路５０の途中部に配設され且つ芯糸３０をロックしたロック状態とロック解除した通常状態とに切換え可能な芯糸ロック機構３４とを備えたので、芯糸ロック機構３４からルーパー土台１１までの距離が短くなり、１サイクルの縫製終了後に下糸と芯糸３０を切断してからルーパー土台１１を回動させて芯糸３０を引っ張って縫製開始位置にセットする際に、芯糸ロック機構３４とルーパー土台１１との間を通る部分の芯糸３０の伸びや弛みを防止でき、芯糸３０の引き戻し量が安定する。そのため、使用者が鋏で芯糸３０を切断したり芯糸３０を引っ張って縫製開始位置にセットし直す必要がない。   As described above, the upper and lower guide pipes 33 for guiding the core yarn 30 to the inside of the bed portion 1, the in-bed guide path 50 for guiding the core yarn 30 introduced to the inside of the bed portion 1 to the looper base 11, Since the core thread lock mechanism 34 is provided in the middle of the guide path 50 and can be switched between a locked state in which the core thread 30 is locked and a normal state in which the core thread 30 is unlocked, the core thread lock mechanism 34 to the looper base 11 are provided. The core thread lock is set when the lower thread and the core thread 30 are cut after the end of one cycle of sewing and the looper base 11 is rotated to pull the core thread 30 and set it to the sewing start position. The portion of the core yarn 30 that passes between the mechanism 34 and the looper base 11 can be prevented from being stretched or loosened, and the amount of the core yarn 30 pulled back is stabilized. Therefore, it is not necessary for the user to cut the core thread 30 with a scissors or to pull the core thread 30 and reset it to the sewing start position.

しかも、ソレノイド３５の駆動により芯糸ロック機構３４をロック状態と通常状態とに切換えることができ、芯糸ロック機構３４をロック状態に切換えた場合、芯糸ロック機構３４により芯糸３０を確実にロックするので、芯糸供給源から芯糸３０が引き出さることもない。一方、縫製時には芯糸ロック機構３４を通常状態に切換えて、芯糸３０を供給側から容易に引き出すことができるので、縫目の縫い縮みを防止できる。同様に、芯糸交換時に芯糸ロック機構３４を通常状態に切換えた場合は、芯糸３０をルーパー土台１１まで容易に案内することができる。   In addition, the core yarn lock mechanism 34 can be switched between the locked state and the normal state by driving the solenoid 35. When the core yarn lock mechanism 34 is switched to the locked state, the core yarn lock mechanism 34 ensures that the core yarn 30 is securely moved. Since it is locked, the core yarn 30 is not pulled out from the core yarn supply source. On the other hand, at the time of sewing, the core thread lock mechanism 34 is switched to the normal state, and the core thread 30 can be easily pulled out from the supply side, so that seam shrinkage can be prevented. Similarly, when the core yarn lock mechanism 34 is switched to the normal state when the core yarn is replaced, the core yarn 30 can be easily guided to the looper base 11.

更に、ベッド内案内経路５０は、芯糸ロック機構３４よりも芯糸３０の送り方向下流側において芯糸３０を案内する水平案内パイプ３９と、ルーパー土台１１の付近で芯糸３０の送り方向を変換する芯糸案内部材４０とを有するので、芯糸３０の交換時には芯糸３０をルーパー土台１１まで容易に案内することができる。   Further, the in-bed guide path 50 has a horizontal guide pipe 39 that guides the core yarn 30 downstream of the core yarn lock mechanism 34 in the feed direction of the core yarn 30 and the feed direction of the core yarn 30 in the vicinity of the looper base 11. Since the core yarn guide member 40 to be converted is included, the core yarn 30 can be easily guided to the looper base 11 when the core yarn 30 is replaced.

更に、芯糸ロック機構３４は、固定部材３８とソレノイド３５により駆動される可動皿部材３７とを有するので、芯糸ロック機構３４をロック状態に切換えたときには、芯糸３０を確実にロックすることができる。更に、芯糸ロック機構３４は水平案内パイプ３９と直線状に配置されたので、縫製中に芯糸ロック機構３４に接触することなく芯糸３０が送り出され、芯糸３０の損傷を防止できる。   Furthermore, since the core yarn locking mechanism 34 includes the fixed member 38 and the movable dish member 37 driven by the solenoid 35, the core yarn 30 is securely locked when the core yarn locking mechanism 34 is switched to the locked state. Can do. Furthermore, since the core thread locking mechanism 34 is arranged linearly with the horizontal guide pipe 39, the core thread 30 is fed out without contacting the core thread locking mechanism 34 during sewing, and damage to the core thread 30 can be prevented.

次に、前記実施例を部分的に変更した変更例について説明する。
１〕上記実施例の芯糸ロック機構３４は、上下案内パイプ３３の下端部よりも下方であって前方右側に配設されることとしたが、芯糸ロック機構３４はベッド部１の内部に配設されていればよく、ベッド部１の内部の他の部位に配設されてもよい。例えば、水平案内パイプ３９の中間部、つまり、水平案内パイプ３９を分割し、その間に芯糸ロック機構３４を配設してもよい。
２〕その他、当業者であれば、本発明の趣旨を逸脱することなく、前記実施例に種々の変更を付加した形態で実施可能で、本発明はそのような変更形態も包含するものである。 Next, a modified example in which the above embodiment is partially modified will be described.
1] Although the core yarn locking mechanism 34 of the above embodiment is disposed below the lower end portion of the vertical guide pipe 33 and on the front right side, the core yarn locking mechanism 34 is disposed inside the bed portion 1. What is necessary is just to be arrange | positioned and it may be arrange | positioned in the other site | part inside the bed part 1. FIG. For example, an intermediate portion of the horizontal guide pipe 39, that is, the horizontal guide pipe 39 may be divided, and the core yarn lock mechanism 34 may be disposed therebetween.
2] In addition, those skilled in the art can implement the present invention in various forms with various modifications without departing from the spirit of the present invention, and the present invention includes such modifications. .

本発明の実施例に係る電子鳩目穴かがりミシンの斜視図である。1 is a perspective view of an electronic eyelet hole sewing machine according to an embodiment of the present invention. 電子鳩目穴かがりミシンの正面図である。It is a front view of an electronic eyelet hole sewing machine. 図２のIII 断面図である。It is III sectional drawing of FIG. 回動機構及びルーパー機構の斜視図である。It is a perspective view of a rotation mechanism and a looper mechanism. ルーパー機構の正面図である。It is a front view of a looper mechanism. 芯糸ロック機構の平面図である。It is a top view of a core thread locking mechanism. 図１に示す構成の要部拡大図である。It is a principal part enlarged view of the structure shown in FIG. 図３に示す構成の要部拡大図である。It is a principal part enlarged view of the structure shown in FIG. 図６においてルーパー土台が縫製開始位置に回動したことを示す図である。FIG. 7 is a view showing that the looper base is rotated to a sewing start position in FIG. 6.

符号の説明Explanation of symbols

Ｍ 電子鳩目穴かがりミシン
１ ベッド部
２ アーム部
１１ ルーパー土台
３０ 芯糸
３１ 芯糸案内棒
３２ 芯糸案内板
３３ 上下案内パイプ
３４ 芯糸ロック機構
３５ ソレノイド
３７ 可動皿部材
３８ 固定部材
３９ 水平案内パイプ
４０ 芯糸案内部材
５０ ベッド内案内経路
５１ 芯糸供給装置 M Electronic eyelet hole sewing machine 1 Bed part 2 Arm part 11 Looper base 30 Core thread 31 Core thread guide rod 32 Core thread guide plate 33 Vertical guide pipe 34 Core thread lock mechanism 35 Solenoid 37 Movable dish member 38 Fixed member 39 Horizontal guide pipe 40 core yarn guide member 50 guide path 51 in bed 51 core yarn supply device

Claims (4)

ミシンのアーム上部に設けられた芯糸案内部を経由して、ルーパー土台に設けられたスロートプレートへ芯糸を供給する鳩目穴かがり縫いミシンの芯糸供給装置において、
前記芯糸案内部を経由した芯糸をベッド部内まで案内する上下案内パイプと、
前記上下案内パイプ内を通って前記ベッド部内まで導入された芯糸をルーパー土台まで案内するベッド内案内経路と、
前記ベッド内案内経路の途中部に配設され且つ前記芯糸をロックしたロック状態とロック解除した通常状態とに切換え可能な芯糸ロック機構と、
を備えたことを特徴とする鳩目穴かがり縫いミシンの芯糸供給装置。 In the core thread supply device for the eyelet stitching sewing machine that supplies the core thread to the throat plate provided on the looper base via the core thread guide provided on the upper part of the sewing machine arm.
An upper and lower guide pipe for guiding the core yarn through the core yarn guide portion into the bed portion;
An in-bed guide path for guiding the core yarn introduced into the bed portion through the upper and lower guide pipes to the looper base;
A core thread locking mechanism disposed in the middle of the bed guide path and capable of switching between a locked state in which the core thread is locked and a normal state in which the core thread is unlocked;
A core thread supply device for an eyelet stitching machine characterized by comprising: 前記ベッド内案内経路は、前記芯糸ロック機構よりも芯糸送り方向下流側において芯糸を案内する水平案内パイプと、前記ルーパー土台の付近で芯糸の送り方向を変換する方向変換部材とを有することを特徴とする請求項１に記載の鳩目穴かがり縫いミシンの芯糸供給装置。   The in-bed guide path includes a horizontal guide pipe that guides the core yarn downstream of the core yarn lock mechanism and a direction changing member that converts the feed direction of the core yarn in the vicinity of the looper base. The core thread supply device for an eyelet-sewn sewing machine according to claim 1, further comprising: 前記芯糸ロック機構は、固定部材と、電磁アクチュエータにより駆動される可動皿部材とを有することを特徴とする請求項１又は２に記載の鳩目穴かがり縫いミシンの芯糸供給装置。   3. The core thread supply device for an eyelet stitch machine according to claim 1 or 2, wherein the core thread locking mechanism has a fixed member and a movable dish member driven by an electromagnetic actuator. 前記芯糸ロック機構は、前記水平案内パイプと直線状に配置されたことを特徴とする請求項２又は３に記載の鳩目穴かがり縫いミシンの芯糸供給装置。   4. The core thread supply device for an eyelet sewing machine according to claim 2, wherein the core thread locking mechanism is arranged linearly with the horizontal guide pipe.
JP2005251205A 2005-08-31 2005-08-31 Core thread supply device for eyelet overlock sewing machine Expired - Fee Related JP4862322B2 (en)

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CN2006101290100A CN1924141B (en) 2005-08-31 2006-08-28 Tore-thread supply device for keyhole sartorius

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KR200474552Y1 (en) 2010-12-10 2014-09-24 가부시키가이샤 스즈끼 세이샤꾸쇼 Looper apparatus of sewing machines

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200474552Y1 (en) 2010-12-10 2014-09-24 가부시키가이샤 스즈끼 세이샤꾸쇼 Looper apparatus of sewing machines

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CN1924141A (en) 2007-03-07
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